Claude 3.7 Sonnet vs Qwen3.5-Plus
| Spec | Claude 3.7 Sonnet | Qwen3.5-Plus |
|---|---|---|
| Respan Index | 19.0 (#124) | 19.4 (#122) |
| Blended price per 1M | - | $0.823 |
| Context window | 200K | 1M |
| Input / output per 1M | - | $0.36 / $2.21 |
| Max output | 128K | - |
| Input | text, vision | text, vision |
| Released | 2025-02-24 | 2026-02-15 |
Respan Index by category
Each category is scored 0 to 100, and how far ahead the winner is. Leads under a point are close to even.
| Category | Claude 3.7 Sonnet | Qwen3.5-Plus |
|---|---|---|
| Coding | 7.5 Claude 3.7 Sonnet | 7.2* Qwen3.5-Plus |
| Agents | 14.2 Claude 3.7 Sonnet | 4.8 Qwen3.5-Plus |
| Reasoning | 22.0 Claude 3.7 Sonnet | 27.7 Qwen3.5-Plus |
| Knowledge & language | 15.2* Claude 3.7 Sonnet | 25.4 Qwen3.5-Plus |
| Human preference | 43.7 Claude 3.7 Sonnet | 46.2* Qwen3.5-Plus |
* Estimated: no published scores in that category. How the Respan Index works
Benchmarks both report
Qwen3.5-Plus leads on 2 of the 2 benchmarks both report. Higher is better. Each score links to where it was published.
| Benchmark | Claude 3.7 Sonnet | Qwen3.5-Plus |
|---|---|---|
| GPQA Diamond | 79.7% | 84.8% |
| OTIS Mock AIME 2024-2025 (Epoch AI) | 57.8% | 86.7% |
FAQ
Is Claude 3.7 Sonnet better than Qwen3.5-Plus?
Qwen3.5-Plus scores 19.4 on the Respan Index (#122), ahead of Claude 3.7 Sonnet at 19.0 (#124). Qwen3.5-Plus leads on 2 of the 2 benchmarks both report.
Which has the larger context window?
Claude 3.7 Sonnet accepts 200K tokens and Qwen3.5-Plus 1M tokens.